Z-CoiL Shoes Are Apparently Not A Sight Gag
...CoiL line of shoes are apparently very real. Their most striking feature, the Z-CoiL itself, is made of steel and serves two purposes. First, it slows the rate of impact experienced by the body when taking a step, since it absorbs a lot of that energy as the coil is compressed. Then as the foot moves forward to take the next step that energy...
